.Source: 49ers possess Aiyuk trade structure along with Browns, Patriots NBC Athletics Bay AreaBrandon Aiyuk profession requirement: 49ers WR more probable to become dealt than receive extension coming from San Francisco, per document CBS SportsReport: 49ers have framework in position for Brandon Aiyuk trade with pair of teams San Francisco ChronicleReport: 49ers have worked out structures of Brandon Aiyuk patronizes Browns, Patriots 49ers Webzone49ers expert gives newest improve on Aiyuk as trade gossips swirl Yahoo Sports.